钥匙环遥控发射器体积小，方便，能够从一个单元操作三个门或门

A必须为房子里的每一套钥匙

3个键盘遥控器

频率：315 / 433.92 / 868MHz AM

加密：固定码/滚动码

Key ring remote transmitters are small and convenient with the ability to operate up to three doors or gates from one unit

A must have for every set of keys in the house

3 buttons keyring remote control

Frequency: 315/433.92/868MHz AM

Encryption: fixed code/rolling code